Article-feed-control of wrapping machines



July 13 1926. 1,592,229

H. A. SEVIGNE ET AL ARTICLE FEED CONTROL OF WRAPPING MACHINES Filed April l9 1924 Q? 2 Sheets-Sheet J.

July 13, 1926,

H. A. S/E'VIGNE ET AL ARTICLE FEED CONTROL OF WRAPPING MACHINES Filed April 9, F92 2 Sheets-Sheet Fig.2.

In venfanfi Henri 14. Se'U/gne' v Ephraim/f 6/7050? 6 c 7% 4 )1. 7 19/ form fy Patented July 13, 1926?.

un -Iran STATES PAT OFFICE.

HENRI A. sEvIeN-E, onwmrunor,MAssAcrrusarrs, AND EPHRAIM H. CHABOT, or

'NASHUA, NEW HAR'PSHERE, nssreivoss T0 NATIONAL BREAD WRAPPING- {MA- CHINE COMPANY, on mission, new HAMPSHIRE, Ann -:sosron, MASSACHUSETTS,

A. CORPORATION OF MASSACHUSETTS.

ARTICHE-FEED-CONTROL OF WRAPBING MACHINES;

Application filed'April 19, 1924. Serial No 707,721.

This invention relates .to wrapping .ma-

chines, especially such as are used .for wrapping loaves of bread or loaves or out .sections of cake, and the invention has particular're'ference to mechanism for ensuring proper feed 'ofthe said articles into the machine.

c When articles of uniform shape and size and lhaving smooth sides are to be wrapped, little or no difficulty is experiencedin transvterring' them properly 'from aqsup'p'ly row and causingthem .to individually reach the wrapping mechanism in accurate positions. But loaves or sections o'fbread or cake are soft and their sides arefinot of such smooth character .as willenable them to be successivelypushed aside from the end of a supply row Without occasional displacement out of vthe proper path of feed to the wrapping mechanism, this being due to the liability of the somewhat rough side surfaces catching upon one another. a

The object of the present invention to provide a machine for, wrapping articles such asloaves or sections of bread or -.cake, with Vmechanism for ensuring separation of individual articles from a supply row in such manner that each article will be caused to approach the wrapping mechanism properly and without disarranging any or". the juxtaposed articles in the row behind it.

"Tothisflend, the invention consists in the construction and combination of parts substantially as hereinafter described and claimed,

'Of the accompanying drawings Figure 1 is a side, elevation, partly in section, of a wrapping machine of the type shown in Letters Patent No. 1,412,754: issued April 11, 1922, 'to' Sevigne & Arnold, to which the present improvements have been applied.

Figure 2 is a plan view of the saidimprovements.

v Figure 3 is a sectional side elevation of the same, illustrating, by full and dotted lines, the operation of the parts thereof.

Figure 4 is a detail side elevation illustrating the final position to whichan article, such as a-loaf of bread, is shifted bythe mechanism shown in Figures 2 and 3.

The wrapping machine illustrated by Figure .1 comprises a ,frame .11 "having a base 10. Along one side is an inclined guideway 12 on which ,a row of the articles will vtend to automatically teed by gravity toward a longitudinally slotted plate 13 which extends into the machine. At the far side of the plate 13 is an upright wa'll'14. Pushers 15,

a wiping belt .35, a pressure plate '34 being .mounted above the latter.

The paper web is fed'by a drum '36 and rolls :37 carried by a shaft 38, to position to be out into sheets which v are "wrapped around the loaves as explained in said patent.

In the machine illustrated "'by Figure 1 the under surface oi. the web of'paperfP 'is Waxed on its way to the wrapping mechanism. To effect this there is provided a tank 60, the side wall '61 of which hasa wax-supply opening closed by a lid 62. 'In a trough '64 at the top is a roll 65, said trough having an overflow pipe 70. The upper surface of the tank, over which and the roll 65 the paperweb is drawn,'is curved as at '71, 72. A pipe 74 supplies steam to keep the wax melted. The roll65 is rotated by gearing operated by a stud shaft 76 hav- 'ing a sprocket 77 driven by a chain 78, the latter being driven by a sprocket 7 9 carried by a shaft 80.

The paper'web is drawn by "feed rolls 82, said paper being guided by rolls '86, 87, 88, and on its way 'to the drum 36 and rolls 37 is held in a .loop by gravity rods 89.

From the supply roll 90 the web passes under a 'guideroll '91 and between a platen roll92 mounted in standards 93 and aprint- 'ing cylinder .94 to which latter ink from a fountain% is transferred by rolls96.

No parts of the machine as so in described are claimed herein. Said machine is illustrated and described "to render more clear the reasons for the present improvements which are for the purpose of ensuring proper separation of each front article from the row being automatically fed and the placing of the same in position to be properly carried into the machine to be wrapped, without disarranging it or any following article in the fed row. To facilitate the distinction between the old and the new, reference letters instead of numerals are employed for the improvements which will now be described. The said improvements, in the machine illustrated, are located at the lower end of the inclined feeding guideway 12, this being the location where the articles, not yet enclosed in anything to presentsinooth sides, are individually separated from the fed row and started in a new direction of travel by the pushers 15. Sometimes heretofore such separation and new direction of movement has caused the article that is separated to be started in to the machine somewhat askew, or the next article behind it to be tilted or otherwise disarranged, due to the pushing of the separated article laterally while still in contact with the article behind it.

At the delivery end of the row-feeding guideway 12 is a stop or barrier a over which each article a; must be lifted to get it onto the plate 13 in the path of movement of a pusher 15. To effect such lifting and transfer a pair of fingers 5, carried by arms 0, are ar 'anged to engage the under surface of the article near its ends. Said arms 0 are connected together by a transverse bar (I (Fig. having an arm 0 pivotally connected at f to a lever 9 (Fig. 3) fulcrumed at ll. and having a roll 2' which is engaged by a cam la carried by a shaft Z.

The shaft Z carries another cam m which acts upon a roll a of an elbow lever 0 pivoted at p and carrying a cross rod q having rolls 7' at its ends under the arms 0.

The timing of operation of the cams is such that just after an article on plate 13 has been acted upon by a pusher 15 to start it in to position in the machine to be wrapped, another article is lifted over the barrier a and deposited on the plate 13 in front of another pusher 15. The cams rotate in the direction of the arrow, Fig. First the cam m acts on the lever 0 to cause the rolls 2' to swing the arms 0 from the full line to the dotted line position indicated in Figure 3, the. fingers Z) lifting the article which had been arrested by the barrier (i above said barrier. This movement of the rticle rocks itsomewhatso that its lower rear surface moves away from the next article behind it. The high portion of the cam m is long enough to maintain the lever 0 and its rolls in the position just described while the cam is next acts on the roll 1' of lever g to swing the latter and push the arms 0 from the dotted line position of Figure 3 to the position indicated by Figure 4, said arms 0 riding along on the still raised rolls 7 and causing the lingers b to carry the article over the barrier a and squarely over the plate 13 and against the wall 1 1. Of course the next article of the. fed row is arrested by the barrier at. Next the cam m permits lever 0 to swing down and lower the lingers .7) through the transverse slots 5 in plate 13 (Fig. 2) so as to deposit said article on the plate. And immediately thereafter the cam m passes the roll 6 of lever g so that said fingers b and arms 0 can return to the full line position of Figure 3 under the influence of any suitable means such as a spring t partially shown in Figure 3. The structure is such as to impart practically a four-motion feeding or carrying movement to the fingers 7) which positively separate each article from the front of a fed row and transport it to position to be acted upon by a carrier (the pushers 15) which transports the article in to the machine, to be wrapped.

By the mechanism described, each front or first article in the row is started in to the wrapping mechanism straight and accurately. No matter how rough or irregular the sides of the articles (such as loaves of bread or cake) are, the rear side of the front or first article is never in contact with the front side of the next article when started in its new direction of travel by a pusher 15 and therefore neither of these two articles is twisted or turned askew by the action of said pusher.

\Vhile the type of machine illustrated by Figure 1 includes printing and paraflining mechanism, it is to be understood that the present invention is not limited to use in such machine. Nor is it essential that the row feeder shall consist of an inclined runway or guideway such as illustrated. Such feeder may consist of a travelling substantially horizontally operated belt such as illustrated in Letters Patent 1,253,636, issued January 15, 1918 to Sevigne and Arnold.

Having now described our invention, we claim 1. A wrapping machine having a feeder for automatically supplying a row of articles in one direction of travel and in juxtaposition, a carrier for moving the articles successively in another direction to position to be assembled with wrapping material, a stationary stop in the path of said row and means intermediate said feeder and carrier for positively separating each article from the front of the fed row and transporting it over said stop to said carrier.

2. A wrapping machine having an inclined gravity feeder for supplying a row of articles in juxtaposition, a stop in position to arrest the front article of the row, a

carrier for moving the articles singly to position to be assembled with wrapping material, and means for successively lifting the articles over said stop and delivering them to said carrier.

3. A Wrapping machine having means for supplying to ita row of articles in juxtaposition. a carrier for moving the articles to position to be Wrapped, fingers for engaging the articles singly, and means for imparting a four-motion path of movement to said fingers to transport each article to said carrier.

4. A Wrapping machine having a feeder for automatically supplying a row of articles in juxtaposition, a stationary stop in position to arrest the front article of the row, a lifter for the front article of the row, and means for actuating said lifter to raise it and then shift it forward to carry said article over the stop.

In testimony whereof We have aflixed our signatures.

HENRI A. SEVIGNE. EPHRAIM H. CHABOT. 

